Valve.



PATENTED JULY 7, 1908.

P. FOWLER.

VALVE. APPLIOATION FILED FEB. 1, 1907.

FRANK FOWLER, OF LOUISVILLE, KENTUCKY.

VALVE.

Specification of Letters Patent.

Patented July 7, 1908.

Application filed February 1, 1907. Serial No. 355,283.

To all whom it may concern: 1 Be it known that I, FRANK FOWLER, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented new and useful Improvements in Valves, of which the following is a specification.

This invention relates to valves of the type embodying a'rotary valve stem to be turned in theoperation of opening and closing the valve and has for its object to provide a comparatively simple, inexpensive device of this character wherein the stem may be readily and positively rotated in one direction for moving the valve to open position and one in which the stem will be automatically turned in the other direction for closing the valve and the valve held securely in closed position.

With these and other objects in view, the invention comprises the novel features of construction and combination of parts more fully hereinafter described.

In the accompanying drawings, Figure 1 is a central longitudinal section through a valve casing equip ed with a valve operating mechanism embo ying the invention. Fig. 2 is a detail sectional view taken on the line 2 2 of Fig. 1.

Referring to the drawings, 1 designates a valve casing having an inlet port 2 and a dis charge port 3, there being arranged in the casing between said ports a web or 1partition 4 provided with an opening 5 norma y closed by means of avalve 6 ,the stem 7 of which is rotatively sustained by bearings 8 and 9, and is provided with screw threads 10 engaged with similar threads on the bearing 9 to adapt the valve for movement in open. or closed position during rotation in the proper direction, while coiled upon the stem is an operating s ring 11 having one of its ends engaged wit the stem and its other end engaged with the bearing 9 or some other fixed part of the casing and designed for holding the stem in position with the valve closed.

Extended into the casing through a bearing box 12 at right angles to the valve stem is a' rotary operating member or rod 13 provided at its outer end with an operatin handle 14 and at its inner end with a cran arm 15 having a slot 16 which receives a finger 17 pivoted in a recess 18 provided in the stem 7, while fixed on the rod 13 at a oint between its ends is a disk-like head 19 adapted to bear on the bottom of the box 12 and having a rejecting pin or stud 20 arranged to work 1n an arcuate slot 21 formed in the bottom of the box and with the ends of which the pin contacts to limit the movement of the rod 13.

In practice and in order to open the valve, the handle 14' is gras ed and the rod 13 rotated from ri ht to le t thereby, through en gagement of the crank arm 15 with the finger 17, rotating the stem 7 in the roper direction for opening the valve, it eing understood that during rotation of the stem, the same is moved longitudinally and rearwardly through the action of the threads 10 while at the same time the sprin 11 is partly unwound. When the handle is released, the ring, in rewinding, causes a reverse rotation of the stem 7, thereby moving the valve to closed position. The fin er 17 being pivoted in the recess 18 of the valve stem Wlll en age the slot 16 in the crank arm 17 Without anger of binding when the rod 13 is turned to operate the valveand the operation of the latter is greatly facilitated and improved.

Having thus described the invention, what I claim is '1. In a valve of the character described comprising a casing having at one end an inlet, and at the opposite end an outlet port and an intermediate bearing box, bearings within the casin a valve carrying stem supported in said bearings for rotary and longitudinal lmovement and having threaded engagement with one of the bearings, a finger ivoted upon the valve stem and an operatmg member supported for rotation in the bearing box at right angles to the valve stem and havin a slotted crank arm engaging the pivoted finger.

2. In a valve of the character described comprising a casing having at one end an inlet, and at the opposite end an outlet port and an intermediate bearing box, bearings within the casin a valve carrying stem supported in sai bearings for rotary and longitudinal movement and having threaded engagement with one of the bearings, a finger I In testimony whereof, I affix my signature pivotled upon thedvfalve stem, an operlating in presence of. two Witnesses.

Inern er su orte or rotation in t e earing box at 55hr angles to the Valve stem and FRANK FOWLER 5 having a slotted crank arm engaging the Witnesses:

pivoted finger, and a retracting spring for the I. C. COOGLE,

Valve stem. 7 C. W. COOGLE. 

